商品名：氨三乙酸(亚氨基三乙酸)

别 名：氨三乙酸、次氮基三乙酸、次氨基三乙酸、特里隆A
Triglycollamic Acid
N,N-Bis(carboxymethyl)glycine
NTA
Tris(carboxymethyl)amine
Triglycine

英文名：Nitrilotriacetic acid

产 地：湖南

Cas号：139-13-9

MDL：MFCD00004287

Beilstein：1710776

EINECS：205-355-7

分子结构：

分子式：C6H9NO6； N(CH2COOH)3

分子量：191.1400

备注：

性状：白色结晶状粉末，不溶于水，溶于氨水或氢氧化物的溶液中，溶于大多数有机溶剂。水中溶解度:1.28 g/L (22.5°C)。
熔点:  245℃

质量标准：HG/T 3-1299-80
项目Item                                                   分析纯
                                                            (AR)
含量(C₆H₉NO₆)Assay,%                                     ≥ 98.5
络合力试验Compiex test                                      合格
氨水中溶解试验Solubility in ammonia solution                合格
灼烧残渣（以硫酸盐计）Ignition residue,%                 ≤ 0.10
氯化物(Cl)Chloride,%                                     ≤ 0.002
硫酸盐(SO₄)Sulfate,%　                                   ≤ 0.002
铁（Fe)Iron,%                                            ≤ 0.002
铜(Cu)Copper,%                                           ≤ 0.0005



项目名称Item                                            ACS Grade
含量assay                                                ≥99.0% (T)
灼烧残渣Residue on ignition                              ≤0.1% (as SO4)
干燥损失loss on drying                                   ≤0.1%
氯chloride (Cl-):                                        ≤100 ppm
cation traces by ICP Atomic emission
  Ca:                                                    ≤10 ppm
  Cd:                                                    ≤5 ppm
  Co:                                                    ≤5 ppm
  Cr:                                                    ≤5 ppm
  Cu:                                                    ≤5 ppm
  Fe:                                                    ≤7 ppm
  K:                                                    ≤50 ppm
  Mg:                                                    ≤5 ppm
  Mn:                                                    ≤5 ppm
  Na:                                                    ≤500 ppm
  Ni:                                                    ≤5 ppm
  Pb:                                                    ≤5 ppm
  Zn:                                                    ≤5 ppm

存储：密封保存。

用途：络合剂，常用于钙、镁、铁等阳离子的测定，金属掩蔽剂。

联合编号：

RISK：

Safety：

Hazard：